单项选择题

Bob won't stop trying ______ he gets what he wants.

A． as
B． that
C． till
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单项选择题
At that time I thought it ______ rain.
A． is going to
B． was going to
C． will
单项选择题
Sometimes we can see ______ stars in the sky at night.
A． thousand of
B． thousands of
C． thousand
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